Minimize Along Track Scanning Radiometer
Instrument image

ATSR consists of two instruments, an Infra-Red Radiometer (IRR) and a Microwave Sounder (MWS). On board ERS-1 the IRR is a four-channel infra-red radiometer used for measuring sea-surface temperatures (SST) and cloud-top temperatures, whereas on board ERS-2 the IRR is equipped with additional visible channels for vegetation monitoring. The MWS is a two channel passive radiometer.

Not Operational
Imaging multi-spectral radiometers (vis/IR)
Technical Characteristics
Sea surface temperature to <0.5K over 0.5 deg x 0.5 deg(lat/long) area with 80% cloud cover, Land surface temperature:0.1K
Spatial Resolution:
IR ocean channels: 1km x 1km, Microwave near-nadir viewing: 20kminstantaneous field of view
Swath Width:
VIS-SWIR: 0.65, 0.85, 1.27, and 1.6m, SWIR-TIR: 1.6, 3.7, 11 and12m, Microwave: 23.8, 36.5GHz (bandwidth of 400MHz)
Earth Topics
Agriculture ( Forestry ), Snow and Ice ( Sea Ice ), Natural Disasters ( Fire , Earthquake/Volcano ), Ocean and Coast ( Sea Surface Temperature ), Atmosphere ( Clouds/Precipitation )
Related Instruments
Available Resources Type Access
ATSR-1/2 User Guide User Guide download
Deforestation evaluation by synergetic use of ERS SAR coherence andATSR hot spots: the Indonesian fire event of 1997 Special Publication download
The ATSR Instrument General Reference order
ERS-1 Along Track Scanning Radiometer Products User Guide Product Document order